Microwave switch housing



FIG. 1 is a perspective view of a microwave switch housing, showing my new design;

FIG. 2 is a front elevational view thereof, the rear view being a mirror image;

FIG. 3 is a left side elevational view thereof; and

FIG. 4 is a right side elevational view thereof. 

The ornamental design for a microwave switch housing, as shown and described. 